105202340053 has 4 divisors (see below), whose sum is σ = 107768250828. Its totient is φ = 102636429280.

The previous prime is 105202340041. The next prime is 105202340057. The reversal of 105202340053 is 350043202501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350043202501 = 99607 ⋅3514243.

It can be written as a sum of positive squares in 2 ways, for example, as 19822668849 + 85379671204 = 140793^2 + 292198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105202340053 is a prime.

It is a super-2 number, since 2×105202340053² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105202340057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282955326 + ... + 1282955407.

It is an arithmetic number, because the mean of its divisors is an integer number (26942062707).

Almost surely, 2^105202340053 is an apocalyptic number.

It is an amenable number.

105202340053 is a deficient number, since it is larger than the sum of its proper divisors (2565910775).

105202340053 is an equidigital number, since it uses as much as digits as its factorization.

105202340053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565910774.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 105202340053 its reverse (350043202501), we get a palindrome (455245542554).

The spelling of 105202340053 in words is "one hundred five billion, two hundred two million, three hundred forty thousand, fifty-three".